Built By Imagination

S6 E8: An old fling of Dan's, and old nemesis of Roseanne's from high school visits Dan at the City Garage, and invites him out to lunch. Jackie finds out from Fred, lies to Roseanne about where Dan is, confronts Dan at home later that evening, but believes him that it was only an innocent lunch. Unaware of how Dan spent his lunch hour, Roseanne confides in Jackie that Dan played hooky that afternoon, and the two of them had the best sex ever. Thanks to Jackie's inability to lie convincingly to Roseanne, she realizes that she has been lied to, forcing Dan to come clean about who he spent his lunch with. Enraged and humiliated, Roseanne walks out on Dan.